:root{--bg: #f5f7f8;--panel: #ffffff;--text: #1f2937;--muted: #667085;--line: #dce5e3;--brand: #0f766e;--brand-dark: #0b4f4a;--gold: #b88835;--danger: #b42318}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Microsoft YaHei,PingFang SC,Arial,sans-serif}button,input,textarea,select{font:inherit}button{border:1px solid var(--line);background:#fff;color:var(--text);border-radius:8px;padding:9px 13px;cursor:pointer;display:inline-flex;align-items:center;gap:6px}button:disabled{opacity:.55;cursor:not-allowed}.primary{border-color:var(--brand);background:var(--brand);color:#fff;font-weight:700}.wide{width:100%;justify-content:center}input,textarea,select{width:100%;border:1px solid var(--line);border-radius:8px;padding:10px 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button{min-height:36px;padding:8px 12px;white-space:nowrap}.admin-grid{display:grid;grid-template-columns:1.3fr .9fr;gap:20px}.settings-panel{display:grid;gap:12px}.full{grid-column:1 / -1}@media(max-width:980px){.app-shell{grid-template-columns:1fr}.sidebar{position:static}.planner-grid,.admin-grid,.form-grid,.revision-box{grid-template-columns:1fr}.special-chat-head{align-items:flex-start;flex-direction:column}.special-chat-shell{grid-template-columns:1fr}.assistant-avatar{display:none}.special-chat-input:before{display:none}.special-chat-foot{margin-left:0}}